194 Clinical Trials for Various Conditions
To determine the effectiveness, safety, and cost efficiency associated with a CCTA-guided selective catheterization strategy for stable patients but without known CAD and an American Heart Association/ American College of Cardiology Class II indication for non-emergent invasive coronary angiography.
The objective of this study is to prospectively evaluate the effects of early versus delayed removal of transuretheral catheters following sacrocolpopexy. The investigators specific aim is to determine the optimal time of removal of an indwelling transurethral catheter postoperatively in an effort to reduce the risk of postoperative urinary retention and urinary tract infection associated with catheter use. The investigators hypotheses are as follows: Hypothesis 1: Longer duration of postoperative catheter use will result in decreased postoperative urinary retention. Hypothesis 2: Shorter duration of postoperative catheter use will result in lower incidence of urinary tract infection.
This is a first-in-human, Phase 1b/2a, open-label, dose-escalation study of a single treatment course consisting of multiple intradetrusor injections of EG110A in male and female adult participants with Neurogenic Detrusor Overactivity (NDO)-related incontinence following Spinal Cord Injury (SCI), who have persistent incontinence after standard of care therapy and who perform Clear Intermittent Catheterization (CIC) on a regular basis.
The goal of this observational study is to quantify ergonomic risk associated with traditional protective equipment in operators working in the cardiac catheterization laboratory as compared with a mobile protection system. The main questions it aims to answer is: What is the mean time spent by operators in positions of high ergonomic postural risk during cases? Participants will wear IMU, EMG, and radiation sensors, as well as complete baseline and discomfort surveys for several catheterization procedures.
Prospectively measure impedance during cardiac catheterization to build a cardiac output algorithm.
This study plans to learn more about heart function among individuals with chronic obstructive pulmonary disease (COPD). In particular, the investigators want to understand the different patterns of right ventricular response to pulmonary hypertension (high pressure in the lungs) during rest and exercise. By identifying patterns of right ventricular dysfunction, this study will help identify better treatments for patients with COPD in the future.
Moderate sedation is used in the catheterization laboratory relieve the anxiety and discomfort associated with access and other aspects of the procedure. Whether being in a fasting state (nothing per os, NPO) at the time of the procedure is beneficial or harmful is not well known, but patients are typically required to be fasting at the time of elective procedures, guidance derived from procedures that require general anesthesia. Whereas the typical thinking was that fasting prior to procedures would minimize the risk of aspiration in the event of intubation, or nausea and other symptoms generally, several studies have shown that prolonged fasting prior to procedures is associated with increased nausea, vomiting, aspiration and procedure recovery time. We aim to evaluate patient satisfaction, nausea and immediate outcomes of patients who are not kept NPO prior to cardiac catheterization.
Data on valve performance following ViV-TAVR has usually been obtained with the use of Doppler-echocardiography. However, some reports have shown significant discordances in the evaluation of mean transvalvular gradient between echocardiography and catheterization, with an overestimation of the real gradient with echo (vs. cath) in most cases. Thus, the incidence of procedural-device failure may be lower than that reported in the ViV-TAVR literature,
The purpose of this study is to test a modified mirror system for female patients to use during self-catheterization.
This is a prospective, single center study which applies a standardized, comprehensive catheterization assessment to patients with a known or suspected diagnosis of pulmonary vein stenosis (PVS) who are undergoing a cardiac catheterization at Boston Children's Hospital. As part of the assessment, each pulmonary vein will undergo angiography (pictures using moving x-rays and contrast dye), intravascular ultrasound (IVUS; pictures of the vein wall using a catheter inside the vein), pressure assessment and compliance testing. The status of each pulmonary vein will then be assessed 12 months after the catheterization (i.e. no disease, severe disease, etc.). Using statistics, the investigators will determine which patient and vein characteristics (obtained at the of catheterization) can predict whether or not a pulmonary vein will have disease. The investigators hypothesize that this comprehensive, standardized, invasive assessment of pediatric intraluminal PVS can predict vein outcome.
The purpose of this study is to explore how the timing of procedural sedation medications influences patient comfort and satisfaction with sedation. Participation in this study will included be randomly assigned to one of two groups (long and short) within standard of care. Each group will observe a time interval between receiving procedural sedation medications and the start of the procedure. A trained observer will evaluate patient experience during the procedure and at the end of the procedure we will ask the participant 3 brief questions about the experience. All other information collected about the experience during the procedure will occur as part of usual care. No further activities will be asked as part of this study. All study activities will occur during a scheduled visit and participation is complete once questions have been answered.
This study is being conducted to determine the length of time a urinary catheter is needed to drain urine from the bladder after colorectal surgery. Urinary retention is a well known complication after pelvic colorectal surgery, and current practice is to continue urinary catheterization for 3- days following pelvic colorectal surgery in an effort to avoid this complication. However, prolonged urinary catheterization is associated with increased risk of urinary tract infections as well as longer hospital stays. The investigators hypothesize that postoperative urinary catheters may be safely removed on postoperative day 1 without increased urinary retention rates. The purpose of this study is to evaluate whether a shorter duration of urinary catheterization (1 day) is non-inferior when compared to standard duration (3 days) in regards to postoperative urinary retention. The investigators plan to perform a prospective, randomized, non-inferiority trial comparing the urinary catheter duration of 1 day and 3 days with the primary endpoint of postoperative urinary retention. Secondary endpoints are urinary tract infection and length of hospital stay. The participants will be randomly assigned to the control group (catheter removal on postoperative day 3) or the experimental group (catheter removal on postoperative day 1).
This study will collect high-quality randomized controlled data across the U.S. from practicing cardiologists performing invasive/interventional procedures and determine how they currently manage patients at risk for CIN and how the results of Hikari's L-FABP test change clinical decision making.
This is a phase IV, prospective, open label, randomized-controlled study that will compare radial access with state-of-the-art femoral access in patients without ST-segment elevation acute myocardial infarction undergoing cardiac catheterization. Subjects will be randomized 1:1 into 2 treatment groups: radial access and state-of-the-art femoral access. Randomization will be performed in blocks of 50 per site. Similarly, a second sub-randomization will be performed in the femoral access group into use of 18 vs 21 gauge needles, also in a 1:1 fashion.
This is a multicenter, prospective trial to measure the test performance characteristics of the Magnetocardiography (MCG) CardioFlux cardiac diagnostic system in detecting clinically significant coronary artery obstruction in patients with symptoms of suspected acute coronary syndrome or who present with a failed stress test with the intention of treat with cardiac catheterization.
This study investigates patient's preference and satisfaction with choice of catheterization after surgical urogynecological procedures.
Umbilical venous catheters (UVC) are typically places with poor guidance and some radiological confirmation. Misplacement of the catheter could lead to its placement in other unintended anatomical areas such as the liver or the spleen, which could be detrimental in critically-ill infants. Our study aims at using a more non-invasive means of placing and continuously monitoring catheter placement using superficial electrocardiogram (ECG) tracings.
The primary aim of this study is to test the hypothesis that use of VR combined with standard procedural education will result in less pre-procedural anxiety than standard procedural education alone among patients undergoing first-time cardiac catheterization. The VR technology being evaluated in this study will allow patients to experience a 3-D simulation of certain aspects of their upcoming procedure prior to the actual procedure date.
It has previously been shown that patients with coronary artery disease may have a harder time quitting smoking if they have a specific genetic profile and that these individuals have a better chance at quitting if they receive nicotine replacement therapy. The investigators hypothesize that determining which individuals with coronary artery disease should receive nicotine replacement therapy based on their genotype may improve the number of individuals who are able to quit smoking.This study randomizes treatment to that determined by the patient's genotype compared to standard, non-genotype-guided, treatment.
Contrast agent is typically used during routine cardiac intervention in order to enhance the imaging necessary to perform the procedure. Using this contrast agent could lead to kidney injury, called contrast induced nephropathy (CIN). Currently, the methods used to reduce the risk of CIN include reducing the amount of contrast agent used and using a hydration strategy during procedure. A computer-based risk tool has been developed which reports a risk score for the likelihood a person undergoing cardiac intervention gets CIN and a proposed corresponding hydration strategy to reduce the risk of CIN. The purpose of this study is to determine whether the rate of CIN decreases when the treating physician has access to this risk tool during the procedure.
Background: A heart catheterization is a diagnostic heart procedure used to measure pressures and take pictures of the blood flow through the heart chambers. Magnetic resonance imaging (MRI) fluoroscopy shows continuous pictures of the heart chambers that doctors can watch while they work. Researchers want to test this procedure with catheterization tools routinely used in x-ray catheterization called guidewires. Guidewires will help move the heart catheter through the different heart chambers. Guidewires are usually considered unsafe during MRI because MRI can cause a guidewire to heat while inside the blood vessels and heart. Researchers are testing special low energy MRI settings that allow certain guidewires to be used during MRI catheterization without heating. Using these guidewires during MRI may help to decrease the amount of time you are in the MRI scanner, and the overall time the MRI catheterization procedure takes. Objectives: To test if certain MRI settings make it safe to use a guidewire during MRI fluoroscopy. Eligibility: Adults 18 and older whose doctors have recommended right heart catheterization. Design: Researchers will screen participants by reviewing their lab results and questionnaire answers. Participants may give 4 blood samples. Participants will be sedated. They will have a tube (catheter) placed in the groin, arm, or neck if they don t already have one. Patches on the skin will monitor heart rhythm. Special antennas, covered in pads, will be placed against the body. Participants will lie flat on a table that slides in and out of the MRI scanner as it makes pictures. Participants will get earplugs for the loud knocking noise. They can talk on an intercom. They will be inside the scanner for up to 2 hours. They can ask to stop at any time. During a heart catheterization, catheters will be inserted through the tubes already in place. The catheters are guided by MRI fluoroscopy into the chambers of the heart and vessels. The guidewire will help position the catheter.
Hemodynamic measurements obtained during pulmonary artery catheterization are essential for the diagnosis and classification of pulmonary hypertension. Traditionally, right heart catheterization (RHC) is done in the supine position. Cardiac output is known to change significantly based on position, due to the effects of gravity on venous return. There has not been a systematic investigation into these postural effects on pulmonary arterial pressures nor their effect on the diagnosis of pulmonary hypertension. It is our intent to study the differences in measurements obtained during RHC when the patient is supine, seated, and standing.
The Center for Disease Control and Prevention (CDC) reports that one in four patients hospitalized in the United States is catheterized to void the bladder or monitor urinary output. In the male population, Dr. Singh, an urologist estimates that about 20% of catheterizations are difficult. Driving a catheter blindly, guessing whether to push the catheter forward or manipulate it to get around a point of resistance leads to the risk of injury which increases the more the catheter is manipulated. Additional adverse events include: urosepsis, UTI and bladder perforation. The standard of care treatment for patients with difficult urinary catheterization (DUC) is to proceed with a cystoscopic catheter placement or suprapubic tube placement. PercuVision has the only Foley catheter with a micro-endoscope for visualization and navigation of the urethra for nurses and other qualified health care professionals. Moreover, it allows urologists to place a guidewire under direct vision rather than calling for a flexible cystoscope which is considered a minor procedure. In this study, the investigators plan on assessing the effectiveness and ease of use of the PercuVision DirectVision® System device.
This study is a retrospective chart review of patients treated with onabotulinumtoxinA (BOTOX®) for idiopathic overactive bladder (OAB) and will determine voiding efficiency (VE) cutoff ratios that predict post-procedure urinary retention requiring catheterization.
After reconstructive pelvic surgery urinary retention occurs in up to 60% of patients requiring an indwelling catheter or self-catheterization (1-5). Up to 35% of women with acute retention experience urinary tract infections in the postoperative period (6, 7). Many women consider being discharged with a Foley catheter to be a surgical complication and describe catheter use as the worst aspect of their surgery(8). At this time there is no consensus within the field of Female Pelvic Medicine and Reconstructive Surgery (FPMRS) on how to best assess voiding function postoperatively. FPMRS providers both within the United States and around the world utilize a variety of void trial methods and varying criteria to determine adequacy of post-operative voiding efficiency (5). The traditional backfill assisted void trial method involves the assessment of a postvoid residual (PVR) volume obtained either via catheterization or bladder scan (3). Recently, there have been efforts to determine ways to avoid the assessment of a PVR as it is time-consuming and potentially exposes the patient to additional catheterizations (9, 10). Many FPMRS providers utilize the backfill assisted method without assessing a PVR and instead utilize a certain voided volume threshold to determine adequate voiding. However, to date, no one has directly studied this approach or compared the traditional backfill assisted void trial to a PVR-free backfill assisted void trial. By decreasing catheterization and creating a more efficient void trial method, the investigators hope improve patients' postoperative experience and reduce catheterization and risk of urinary tract infection (UTI). This study aims to compare two void trial methodologies in order to help standardize post-operative care in the urogynecology population. This study also has potential to lead to an overall change in our field and improve the postoperative course for women across the country and abroad.
The investigators will conduct a randomized controlled trial that aims to compare the incidence of contrast-induced nephropathy between transradial- and transfemoral-access cardiac catheterization.
Randomization (1:1) of male patients, over age 50, undergoing elective spine surgery to tamsulosin versus a placebo.
Currently catheters used in heart catheterization procedures are guided throughout the heart chambers and blood vessels by pictures taken by x-rays. This technology exposes patients to radiation. With this study protocol the investigators will use MRI technology to take real-time pictures to navigate catheters throughout heart chambers. MRI uses electromagnetic energy; therefore, it does not expose participants to radiation energy.
This study will evaluate the use of x-ray fused with MR images as an imaging tool to help guide catheter tools during diagnostic and therapeutic cardiac catheterization procedures.
The purpose of this study is to compare the safety and effects of fasting or not fasting overnight before a cardiac catheterization (heart procedure). The study will compare patients who have nothing to eat after midnight before the procedure to those who are allowed to eat or drink before the procedure.